What was found
WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND RIGHT SILL PANEL AT FRAME 14 CORRODED. MAINTENANCE REMOVED AND REPLACED THE RIGHT SILL PANEL AT FRAME 14 IAW EMB 170 SRM 51-40-02, 51-40-04, 51-41-01 AND 51-43-02. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.